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A 23-year-old man was fatally wounded overnight in the Uptown neighborhood on the North Side, Chicago police said.

About 4 a.m., officers responded to a call of someone wounded in the 5100 block of North Sheridan Road where they found a victim lying on the ground with a gunshot wound to the head. He was pronounced dead at the scene.

A witness told officers they saw a vehicle fleeing the scene, police said.

No one was in custody for the fatal shooting and detectives were investigating.